Remove remaining calls to deprecated MessageLoop methods.

remoting/protocol/connection_tester.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_PROTOCOL_CONNECTION_TESTER_H_
 #define REMOTING_PROTOCOL_CONNECTION_TESTER_H_
 
 #include <list>
 #include <memory>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
-
-namespace base {
-class MessageLoop;
-}  // namespace base
+#include "base/single_thread_task_runner.h"
 
 namespace net {
 class DrainableIOBuffer;
 class GrowableIOBuffer;
 class IOBuffer;
 }  // namespace net
 
 namespace remoting {
 
 class CompoundBuffer;
@@ skipping 24 matching lines @@
   void Done();
   void InitBuffers();
   void DoWrite();
   void OnWritten(int result);
   void HandleWriteResult(int result);
   void DoRead();
   void OnRead(int result);
   void HandleReadResult(int result);
 
  private:
-  base::MessageLoop* message_loop_;
+  const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   P2PStreamSocket* host_socket_;
   P2PStreamSocket* client_socket_;
   int message_size_;
   int test_data_size_;
   bool done_;
 
   scoped_refptr<net::DrainableIOBuffer> output_buffer_;
   scoped_refptr<net::GrowableIOBuffer> input_buffer_;
 
   int write_errors_;
@@ skipping 14 matching lines @@
 
  private:
   void Done();
   void DoWrite();
   void OnWritten(int result);
   void HandleWriteResult(int result);
   void DoRead();
   void OnRead(int result);
   void HandleReadResult(int result);
 
-  base::MessageLoop* message_loop_;
+  const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   P2PDatagramSocket* host_socket_;
   P2PDatagramSocket* client_socket_;
   int message_size_;
   int message_count_;
   int delay_ms_;
   bool done_;
 
   std::vector<scoped_refptr<net::IOBuffer> > sent_packets_;
   scoped_refptr<net::IOBuffer> read_buffer_;
 
@@ skipping 25 matching lines @@
   int message_count_;
 
   std::vector<std::unique_ptr<VideoPacket>> sent_messages_;
   std::vector<std::unique_ptr<VideoPacket>> received_messages_;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_CONNECTION_TESTER_H_